{"id":1781,"date":"2026-09-08T05:44:08","date_gmt":"2026-09-08T05:44:08","guid":{"rendered":"https:\/\/metalite.net\/?post_type=product&#038;p=1781"},"modified":"2026-09-08T05:45:47","modified_gmt":"2026-09-08T05:45:47","slug":"crane-rear-outrigger-jack-hydraulic-cylinder-hcyy11112027","status":"publish","type":"product","link":"https:\/\/metalite.net\/kk\/product\/crane-rear-outrigger-jack-hydraulic-cylinder-hcyy11112027\/","title":{"rendered":"Crane Rear Outrigger Jack Hydraulic Cylinder \u2014 HCYY11112027 | \u03a670\u00d7\u03a655, 20MPa"},"content":{"rendered":"<div style=\"font-family: 'Segoe UI', Arial, sans-serif; color: #1a1a1a; max-width: 1100px; margin: 0 auto; padding: 0 16px; line-height: 1.7;\">\n<p><!-- SEO Keywords for this page: Core: crane rear outrigger jack hydraulic cylinder Related: rear outrigger vertical jack cylinder, crane rear stabilizer jack, short stroke jack cylinder crane, rear leg jack actuator Long-tail: crane rear outrigger jack hydraulic cylinder 70mm bore 20MPa 420mm stroke | short stroke vertical jack cylinder for crane rear outrigger | rear stabilizer jack hydraulic cylinder OEM manufacturer --><\/p>\n<p><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 HERO: Main product image + spec card \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 --><\/p>\n<div style=\"display: flex; flex-wrap: wrap; gap: 32px; margin-bottom: 48px; align-items: flex-start;\">\n<div style=\"flex: 1 1 340px; min-width: 280px;\"><img decoding=\"async\" style=\"width: 100%; border-radius: 6px; display: block;\" src=\"https:\/\/metalite.net\/wp-content\/uploads\/2026\/09\/HCYY11112027-Crane-Rear-Outrigger-Jack-Hydraulic-Cylinder.webp\" alt=\"HCYY11112027 Crane Rear Outrigger Jack Hydraulic Cylinder \u2013 \u03a670 bore, 20MPa, 420mm stroke\" title=\"\"><\/div>\n<div style=\"flex: 1 1 340px; min-width: 280px;\">\n<p style=\"font-size: 13px; color: #666; margin: 0 0 8px 0; text-transform: uppercase; letter-spacing: 0.05em;\">Model: HCYY11112027<\/p>\n<h2 style=\"font-size: 28px; font-weight: bold; color: #0d2d52; margin: 0 0 16px 0; line-height: 1.3;\">Crane Rear Outrigger Jack Hydraulic Cylinder<\/h2>\n<p style=\"font-size: 16px; color: #333; margin: 0 0 24px 0;\">The <strong>crane rear outrigger jack hydraulic cylinder<\/strong> HCYY11112027 is the vertical actuator at the rear outrigger position \u2014 it drives the rear outrigger pad into the ground, lifts the rear of the crane chassis off its suspension, and holds that position throughout the lift cycle. With a \u03a670mm bore, a 420mm stroke, a 20MPa working pressure, and a total weight of just 24kg, this is the most compact jack cylinder in this crane series. Its short stroke reflects a deliberate geometric reality: the rear of the crane chassis sits lower to the ground than the front, requiring less vertical cylinder travel to achieve the same chassis lift height.<\/p>\n<div style=\"background: #f0f4fa; border-left: 4px solid #1a5fa8; padding: 16px 20px; border-radius: 0 6px 6px 0; margin-bottom: 24px;\">\n<p style=\"margin: 0; font-size: 15px; color: #1a5fa8; font-weight: 600;\">Key Specifications at a Glance<\/p>\n<ul style=\"margin: 10px 0 0 0; padding-left: 18px; color: #333; font-size: 14px;\">\n<li style=\"margin-bottom: 4px;\">Bore \u00d7 Rod \u00d7 Stroke: \u03a670 \u00d7 \u03a655 \u00d7 420 mm<\/li>\n<li style=\"margin-bottom: 4px;\">Working Pressure: 20 MPa<\/li>\n<li style=\"margin-bottom: 4px;\">Max Withstand Pressure: 30 MPa<\/li>\n<li style=\"margin-bottom: 4px;\">Installation Distance: 640 mm<\/li>\n<li>Weight: 24 kg<\/li>\n<\/ul>\n<\/div>\n<p><a style=\"display: inline-block; background: #1a5fa8; color: #fff; padding: 13px 28px; border-radius: 4px; text-decoration: none; font-weight: 600; font-size: 15px;\" href=\"#contact-cta\">Request a Quote or Technical Drawing<\/a><\/p>\n<\/div>\n<\/div>\n<p><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 SECTION 1: Product overview \u2014 detail view image inline with text \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 --><\/p>\n<h2 style=\"font-size: 22px; font-weight: bold; color: #0d2d52; border-bottom: 2px solid #e0e8f2; padding-bottom: 10px; margin: 48px 0 20px 0;\">Why the Rear Outrigger Jack Cylinder Has the Shortest Stroke of Any Jack in This Series \u2014 and Why That Is Correct<\/h2>\n<div style=\"display: flex; flex-wrap: wrap; gap: 28px; align-items: flex-start; margin-bottom: 24px;\">\n<div style=\"flex: 2 1 340px; min-width: 280px;\">\n<p style=\"font-size: 15px; color: #333; margin: 0 0 16px 0;\">The HCYY11112027&#8217;s 420mm stroke is the shortest jack cylinder stroke in this entire product range \u2014 nearly half the 790mm stroke of the front jack cylinder (HCYY11112025). This difference is not a compromise; it is the correct specification for the rear outrigger jack position on this crane class. Understanding why requires thinking about the crane&#8217;s geometry as a three-dimensional structure.<\/p>\n<p style=\"font-size: 15px; color: #333; margin: 0 0 16px 0;\">On a truck-mounted crane, the chassis frame slopes or steps between the front and rear axle positions due to the cab height, engine compartment, and frame rail geometry. The rear of the chassis typically sits closer to the ground than the front. When the outrigger beams are deployed and the jack cylinders begin extending downward, the rear jack reaches the ground and begins lifting the chassis sooner \u2014 in less cylinder travel \u2014 than the front jack. A rear jack cylinder with the same stroke as the front would simply mean unused stroke capacity that adds weight, installation length, and cost without any operational benefit.<\/p>\n<p style=\"font-size: 15px; color: #333; margin: 0 0 0 0;\">At 20MPa across a \u03a670mm bore, the HCYY11112027 generates approximately <strong>77 kN of vertical push force<\/strong> \u2014 approximately 7.8 tonnes-force per rear jack position. This is slightly less than the front jack&#8217;s 90 kN, reflecting the rear outrigger&#8217;s typically lower share of total crane weight in configurations where the boom and counterweight are positioned toward the front of the machine. With both rear jack cylinders deployed, total rear vertical support capacity reaches approximately 154 kN \u2014 approximately 15.7 tonnes of rear chassis support.<\/p>\n<\/div>\n<div style=\"flex: 1 1 220px; min-width: 200px;\"><img decoding=\"async\" style=\"width: 100%; border-radius: 6px; display: block;\" src=\"https:\/\/metalite.net\/wp-content\/uploads\/2026\/09\/HCYY11112027.webp\" alt=\"HCYY11112027 rear outrigger jack cylinder product detail view\" title=\"\"><\/p>\n<p style=\"font-size: 12px; color: #888; margin: 8px 0 0 0; text-align: center;\">HCYY11112027 \u2014 420mm stroke, 24kg, purpose-sized for the rear jack position<\/p>\n<\/div>\n<\/div>\n<p><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 INSTALLATION DIAGRAM \u2014 after overview, shows rear jack position in chassis \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 --><\/p>\n<div style=\"background: #f7f9fc; border: 1px solid #dce6f0; border-radius: 6px; padding: 20px; margin: 32px 0;\">\n<p style=\"margin: 0 0 12px 0; font-weight: 600; color: #0d2d52; font-size: 15px;\">Installation Position \u2014 HCYY11112024 \/ 25 \/ 26 \/ 27 on Crane<\/p>\n<p><img decoding=\"async\" style=\"width: 100%; border-radius: 4px; display: block;\" src=\"https:\/\/metalite.net\/wp-content\/uploads\/2026\/09\/HCYY11112024-5-6-7-Crane-Hydraulic-Cylinder-Location-Diagram-scaled.webp\" alt=\"HCYY11112027 crane rear outrigger jack hydraulic cylinder installation position within crane chassis\" title=\"\"><\/p>\n<p style=\"margin: 12px 0 0 0; font-size: 13px; color: #666;\">The rear outrigger jack cylinder (HCYY11112027) sits vertically within the rear outrigger beam assembly. Its 640mm retracted installation distance and 420mm stroke are dimensioned to match the rear chassis geometry \u2014 note the shorter vertical envelope compared to the front jack position (HCYY11112025).<\/p>\n<\/div>\n<p><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 SECTION 2: Technical specs table \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 --><\/p>\n<h2 style=\"font-size: 22px; font-weight: bold; color: #0d2d52; border-bottom: 2px solid #e0e8f2; padding-bottom: 10px; margin: 48px 0 20px 0;\">Full Technical Specifications for the HCYY11112027 Short-Stroke Rear Stabilizer Jack Hydraulic Cylinder<\/h2>\n<p style=\"font-size: 15px; color: #333; margin: 0 0 20px 0;\">Each parameter reflects the rear outrigger jack&#8217;s specific position, load share, and chassis geometry requirements. The engineering rationale behind each figure is explained alongside the value.<\/p>\n<div style=\"overflow-x: auto; margin-bottom: 28px;\">\n<table style=\"width: 100%; border-collapse: collapse; font-size: 14px; min-width: 600px;\">\n<thead>\n<tr style=\"background: #0d2d52; color: #fff;\">\n<th style=\"padding: 12px 14px; text-align: left; font-weight: 600;\">Parameter<\/th>\n<th style=\"padding: 12px 14px; text-align: left; font-weight: 600;\">Value<\/th>\n<th style=\"padding: 12px 14px; text-align: left; font-weight: 600;\">Engineering Significance<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; font-weight: 600; color: #0d2d52;\">Model<\/td>\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2;\">HCYY11112027<\/td>\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; color: #555;\">Rear outrigger jack position. Not interchangeable with the front jack (HCYY11112025) \u2014 stroke, installation distance, bore, and rod diameter all differ.<\/td>\n<\/tr>\n<tr style=\"background: #f7f9fc;\">\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; font-weight: 600; color: #0d2d52;\">Specifications<\/td>\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2;\">\u03a670 \u00d7 \u03a655 \u00d7 420 mm<\/td>\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; color: #555;\">Bore \u00d7 Rod \u00d7 Stroke. The \u03a655mm rod gives a 78.6% rod-to-bore ratio \u2014 the correct balance between compressive column strength and annular retraction area for a short-stroke vertical jack application.<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; font-weight: 600; color: #0d2d52;\">Working Pressure<\/td>\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2;\">20 MPa<\/td>\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; color: #555;\">At \u03a670mm bore (area \u2248 3,848 mm\u00b2), this generates approximately 77 kN vertical push force \u2014 approximately 7.8 tonnes-force per rear jack. Slightly higher pressure than the front jack&#8217;s 18MPa circuit, compensating for the smaller bore to maintain adequate lift force.<\/td>\n<\/tr>\n<tr style=\"background: #f7f9fc;\">\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; font-weight: 600; color: #0d2d52;\">Max Withstand Pressure<\/td>\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2;\">30 MPa<\/td>\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; color: #555;\">1.5\u00d7 working pressure safety factor. Ensures structural integrity under dynamic ground reaction spikes and load redistribution transients \u2014 the same proof pressure standard applied to all jack cylinders in this series.<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; font-weight: 600; color: #0d2d52;\">Stroke<\/td>\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2;\">420 mm<\/td>\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; color: #555;\">Shortest jack cylinder stroke in this series. Calibrated to the rear chassis height above ground \u2014 the rear frame sits lower than the front, so less vertical cylinder travel is needed to achieve equivalent chassis lift height at the rear position.<\/td>\n<\/tr>\n<tr style=\"background: #f7f9fc;\">\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; font-weight: 600; color: #0d2d52;\">Installation Distance<\/td>\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2;\">640 mm<\/td>\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; color: #555;\">Pin-to-pin retracted length. The compact 640mm envelope fits within the vertical space available in the rear outrigger beam&#8217;s lower section \u2014 confirm against your chassis bracket measurement before ordering.<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 11px 14px; font-weight: 600; color: #0d2d52;\">Weight<\/td>\n<td style=\"padding: 11px 14px;\">24 kg<\/td>\n<td style=\"padding: 11px 14px; color: #555;\">Matches the front extension cylinder (HCYY11112024) in weight despite being a jack cylinder \u2014 a consequence of the shorter stroke and smaller bore. Two-person field replacement, no lifting equipment required.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 SECTION 3: 20MPa pressure + \u03a655 rod logic \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 --><\/p>\n<h2 style=\"font-size: 22px; font-weight: bold; color: #0d2d52; border-bottom: 2px solid #e0e8f2; padding-bottom: 10px; margin: 48px 0 20px 0;\">The Engineering Logic Behind 20MPa Working Pressure and a \u03a655mm Rod in a \u03a670mm Bore Jack Cylinder<\/h2>\n<p style=\"font-size: 15px; color: #333; margin: 0 0 16px 0;\">Two parameters in the HCYY11112027 specification deserve specific attention: the 20MPa working pressure and the \u03a655mm rod diameter. Each reflects a deliberate engineering trade-off.<\/p>\n<p style=\"font-size: 15px; color: #333; margin: 0 0 16px 0;\"><strong>Why 20MPa on a \u03a670mm bore?<\/strong> The rear jack needs to develop approximately 77 kN of vertical push force to carry its share of the crane chassis weight and load. A larger bore at lower pressure could achieve this \u2014 for example, a \u03a690mm bore at 12MPa would yield approximately 76 kN. But a larger bore would increase the cylinder&#8217;s weight, outer diameter, and installation envelope. The \u03a670mm bore at 20MPa achieves the required force within the compact packaging constraints of the rear outrigger beam, where vertical space is limited by the chassis frame height and beam section dimensions. This is the same force-packaging trade-off that appears throughout hydraulic system design: higher pressure allows smaller bore for equivalent force output.<\/p>\n<p style=\"font-size: 15px; color: #333; margin: 0 0 16px 0;\"><strong>Why \u03a655mm rod in a \u03a670mm bore?<\/strong> The 78.6% rod-to-bore ratio is characteristic of jack cylinder design where compressive column strength is the primary rod sizing criterion. At a 420mm stroke with pin-pinned end conditions, the Euler critical buckling load for a \u03a655mm solid steel rod is approximately <strong>3,240 kN<\/strong> \u2014 over 42 times the maximum hydraulic thrust of 77 kN. The buckling safety factor is, by any standard, enormous. The rod diameter is not constrained by buckling at all at this stroke length. Instead, \u03a655mm is sized to provide adequate annular area on the retraction side (\u03a670mm bore minus \u03a655mm rod annular area \u2248 1,462 mm\u00b2), yielding approximately 29 kN retraction force at 20MPa \u2014 sufficient to retract the cylinder against any residual ground contact load when the jack is being retrieved.<\/p>\n<p><!-- Front vs rear jack comparison --><\/p>\n<p style=\"font-size: 15px; color: #333; margin: 0 0 16px 0;\">The table below compares the front and rear jack cylinders across every key parameter \u2014 the differences that prevent cross-position installation:<\/p>\n<div style=\"overflow-x: auto; margin-bottom: 12px;\">\n<table style=\"width: 100%; border-collapse: collapse; font-size: 14px; min-width: 500px;\">\n<thead>\n<tr style=\"background: #0d2d52; color: #fff;\">\n<th style=\"padding: 12px 14px; text-align: left; font-weight: 600;\">Parameter<\/th>\n<th style=\"padding: 12px 14px; text-align: center; font-weight: 600;\">Front Jack (HCYY11112025)<\/th>\n<th style=\"padding: 12px 14px; text-align: center; font-weight: 600;\">Rear Jack (HCYY11112027)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; font-weight: 600; color: #0d2d52;\">Bore \u00d7 Rod<\/td>\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; text-align: center;\">\u03a680 \u00d7 \u03a660 mm<\/td>\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; text-align: center;\">\u03a670 \u00d7 \u03a655 mm<\/td>\n<\/tr>\n<tr style=\"background: #f7f9fc;\">\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; font-weight: 600; color: #0d2d52;\">Working Pressure<\/td>\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; text-align: center;\">18 MPa<\/td>\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; text-align: center;\">20 MPa<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; font-weight: 600; color: #0d2d52;\">Push Force<\/td>\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; text-align: center;\">\u2248 90 kN<\/td>\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; text-align: center;\">\u2248 77 kN<\/td>\n<\/tr>\n<tr style=\"background: #f7f9fc;\">\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; font-weight: 600; color: #0d2d52;\">Stroke<\/td>\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; text-align: center;\">790 mm<\/td>\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; text-align: center;\">420 mm<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; font-weight: 600; color: #0d2d52;\">Installation Distance<\/td>\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; text-align: center;\">1,112 mm<\/td>\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; text-align: center;\">640 mm<\/td>\n<\/tr>\n<tr style=\"background: #f7f9fc;\">\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; font-weight: 600; color: #0d2d52;\">Max Withstand Pressure<\/td>\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; text-align: center;\">27 MPa<\/td>\n<td style=\"padding: 11px 14px; border-bottom: 1px solid #e0e8f2; text-align: center;\">30 MPa<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 11px 14px; font-weight: 600; color: #0d2d52;\">Weight<\/td>\n<td style=\"padding: 11px 14px; text-align: center;\">45 kg<\/td>\n<td style=\"padding: 11px 14px; text-align: center;\">24 kg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p style=\"font-size: 13px; color: #666; font-style: italic; margin: 0 0 32px 0;\">The rear jack cylinder is smaller in bore, shorter in stroke, and nearly half the weight of the front jack \u2014 every dimension reflects the rear chassis geometry and rear load share, not a quality reduction.<\/p>\n<p><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 SECTION 4: Static hold at rear position \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 --><\/p>\n<h2 style=\"font-size: 22px; font-weight: bold; color: #0d2d52; border-bottom: 2px solid #e0e8f2; padding-bottom: 10px; margin: 48px 0 20px 0;\">Static Load Holding at the Rear Outrigger Position \u2014 What 420mm of Stroke Means in Practice<\/h2>\n<p style=\"font-size: 15px; color: #333; margin: 0 0 16px 0;\">The same static load-holding requirement that applies to all jack cylinders in this series applies equally to the HCYY11112027: once extended to its working position, the cylinder must hold the rear chassis at a fixed height without any internal leakage or drift for the duration of the lift operation. The 30MPa maximum withstand pressure \u2014 a 50% margin above the 20MPa rated working pressure \u2014 is the proof test standard that validates this holding capability across the cylinder&#8217;s operating life.<\/p>\n<p style=\"font-size: 15px; color: #333; margin: 0 0 16px 0;\">The 420mm stroke also simplifies the levelling geometry at the rear position. With a shorter stroke range, the differential extension between left and right rear jack cylinders needed to level the chassis across a moderate cross-slope is a larger percentage of total available stroke than it would be on a longer-stroke cylinder. This means the rear jack circuit&#8217;s levelling resolution \u2014 how finely the operator can control chassis level at the rear \u2014 is effectively coarser per unit of operator input compared to the front. On cranes with manual outrigger controls, experienced operators account for this by making smaller rear jack adjustments near the levelled position.<\/p>\n<p style=\"font-size: 15px; color: #333; margin: 0 0 16px 0;\">As with the front jack cylinder, the piston seal in the HCYY11112027 uses a pressure-energised configuration: sealing contact force increases proportionally with differential pressure. At 20MPa static hold \u2014 the condition the cylinder spends most of its operational life in \u2014 this seal design is at its most effective. Zero internal leakage under a 5-minute hold at 30MPa is the factory acceptance standard for every unit shipped.<\/p>\n<p><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 SECTION 5: Applications \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 --><\/p>\n<h2 style=\"font-size: 22px; font-weight: bold; color: #0d2d52; border-bottom: 2px solid #e0e8f2; padding-bottom: 10px; margin: 48px 0 20px 0;\">Application Scenarios for the Rear Leg Jack Actuator on Mobile and Truck-Mounted Cranes<\/h2>\n<ul style=\"padding-left: 20px; color: #333; font-size: 15px; margin: 0 0 20px 0;\">\n<li style=\"margin-bottom: 10px;\"><strong>Truck-mounted cranes, 25t\u2013100t class:<\/strong> Two rear jack cylinders deploy in parallel with two front jack cylinders. At 24kg each, both rear units can be replaced in the field without lifting equipment \u2014 a significant advantage over the heavier main outrigger jack (HCYY11112023 at 123kg).<\/li>\n<li style=\"margin-bottom: 10px;\"><strong>Cranes with rear counterweight configurations:<\/strong> Where a heavy rear counterweight increases the rear outrigger jack load beyond the front&#8217;s. In these configurations the rear jack&#8217;s 20MPa circuit pressure provides the additional force margin over the front&#8217;s 18MPa to handle the elevated rear load share.<\/li>\n<li style=\"margin-bottom: 10px;\"><strong>Confined-site operations:<\/strong> On sites where the crane must be positioned close to structures and outrigger extension is limited, the rear jacks may be operating at partial beam extension with correspondingly higher jack loads. The 30MPa withstand rating provides the safety margin for these overloaded partial-spread conditions.<\/li>\n<li style=\"margin-bottom: 10px;\"><strong>Extended maintenance lift operations:<\/strong> Where cranes support loads for hours or overnight. The pressure-energised piston seal design ensures sustained static holding without drift across long hold durations.<\/li>\n<li style=\"margin-bottom: 10px;\"><strong>OEM crane manufacturing:<\/strong> First-fit supply for crane builders requiring confirmed batch consistency in bore finish, rod straightness, seal groove dimensions, and pressure test records for assembly line quality control.<\/li>\n<li style=\"margin-bottom: 10px;\"><strong>Fleet MRO:<\/strong> The 24kg weight makes this the most practical of all seven cylinders for field replacement \u2014 one technician with a service van can carry and install a replacement unit without assistance or lifting aids. It is also a practical running spare for crane fleets operating in remote locations.<\/li>\n<\/ul>\n<p><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 SECTION 6: Construction details \u2014 CAD image placed after construction details \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 --><\/p>\n<h2 style=\"font-size: 22px; font-weight: bold; color: #0d2d52; border-bottom: 2px solid #e0e8f2; padding-bottom: 10px; margin: 48px 0 20px 0;\">Construction and Quality Standards for the HCYY11112027 Rear Outrigger Jack Cylinder<\/h2>\n<p style=\"font-size: 15px; color: #333; margin: 0 0 24px 0;\">At \u03a670mm bore and 20MPa working pressure, the HCYY11112027 operates in a pressure class where manufacturing precision in bore finish, rod plating, and seal groove geometry have direct and measurable effects on service life. The following details define the build standard.<\/p>\n<div style=\"display: flex; flex-wrap: wrap; gap: 20px; margin-bottom: 36px;\">\n<div style=\"flex: 1 1 280px; background: #f7f9fc; border: 1px solid #dce6f0; border-radius: 6px; padding: 20px;\">\n<p style=\"margin: 0 0 8px 0; font-weight: bold; color: #0d2d52; font-size: 15px;\">Cylinder Barrel<\/p>\n<p style=\"margin: 0; font-size: 14px; color: #444;\">Seamless cold-drawn steel tube, wall thickness calculated for 30MPa proof pressure with minimum 4:1 burst safety factor. Bore honed to Ra 0.2\u20130.4\u03bcm. At \u03a670mm, the honing process maintains bore roundness within 0.015mm over the full 420mm barrel length \u2014 a practical tolerance given the short barrel, but still verified at multiple positions before acceptance.<\/p>\n<\/div>\n<div style=\"flex: 1 1 280px; background: #f7f9fc; border: 1px solid #dce6f0; border-radius: 6px; padding: 20px;\">\n<p style=\"margin: 0 0 8px 0; font-weight: bold; color: #0d2d52; font-size: 15px;\">\u03a655mm Piston Rod<\/p>\n<p style=\"margin: 0; font-size: 14px; color: #444;\">45# or 40Cr steel, hard chrome plated 20\u201325\u03bcm on Ra 0.1\u03bcm ground substrate. Rod straightness verified to 0.05mm per 300mm after plating. The 420mm rod length means straightness verification is a single measurement per rod \u2014 but chrome plating quality must still be confirmed across the full surface, as pitting or thin zones are not predictably located.<\/p>\n<\/div>\n<div style=\"flex: 1 1 280px; background: #f7f9fc; border: 1px solid #dce6f0; border-radius: 6px; padding: 20px;\">\n<p style=\"margin: 0 0 8px 0; font-weight: bold; color: #0d2d52; font-size: 15px;\">Piston Seal System<\/p>\n<p style=\"margin: 0; font-size: 14px; color: #444;\">Pressure-energised seal at the piston: contact force increases with differential pressure, maximising sealing effectiveness during the static load-holding phase that dominates the cylinder&#8217;s duty cycle. Piston guide rings are sized for the \u03a670mm bore to maintain concentricity and prevent metal-to-metal contact during retraction under offset ground loads.<\/p>\n<\/div>\n<div style=\"flex: 1 1 280px; background: #f7f9fc; border: 1px solid #dce6f0; border-radius: 6px; padding: 20px;\">\n<p style=\"margin: 0 0 8px 0; font-weight: bold; color: #0d2d52; font-size: 15px;\">Rod Seal and Wiper<\/p>\n<p style=\"margin: 0; font-size: 14px; color: #444;\">Polyurethane primary rod seal, PTFE backup ring, and dual wiper seals at the gland. The rear jack cylinder is positioned close to the rear axle \u2014 exposed to road debris, mud, and tyre spray during transit. The dual-wiper configuration protects the primary seal from abrasive contamination that would otherwise rapidly score the chrome rod surface.<\/p>\n<\/div>\n<div style=\"flex: 1 1 280px; background: #f7f9fc; border: 1px solid #dce6f0; border-radius: 6px; padding: 20px;\">\n<p style=\"margin: 0 0 8px 0; font-weight: bold; color: #0d2d52; font-size: 15px;\">Rod End Pad Interface<\/p>\n<p style=\"margin: 0; font-size: 14px; color: #444;\">Spherical socket or flat pad interface at the rod end, heat-treated at the contact face. The spherical option permits \u00b15\u00b0 angular deviation to prevent bending moment transmission into the rod when the pad contacts uneven or sloped ground at the rear axle position. Contact face hardness is verified by Rockwell test on sample units per production batch.<\/p>\n<\/div>\n<div style=\"flex: 1 1 280px; background: #f7f9fc; border: 1px solid #dce6f0; border-radius: 6px; padding: 20px;\">\n<p style=\"margin: 0 0 8px 0; font-weight: bold; color: #0d2d52; font-size: 15px;\">Pressure Test<\/p>\n<p style=\"margin: 0; font-size: 14px; color: #444;\">Each cylinder tested at 30MPa (full max withstand pressure) with a 5-minute hold at both full extension and full retraction. Zero internal leakage and zero external leakage required at both positions. The compact 640mm retracted installation distance means test fixture geometry is straightforward \u2014 a full test at rated conditions is performed on every unit, not sampled by batch.<\/p>\n<\/div>\n<\/div>\n<p><!-- CAD image: before ordering checklist --><\/p>\n<div style=\"background: #f7f9fc; border: 1px solid #dce6f0; border-radius: 6px; padding: 20px; margin: 0 0 48px 0;\">\n<p style=\"margin: 0 0 12px 0; font-weight: 600; color: #0d2d52; font-size: 15px;\">HCYY11112027 \u2014 CAD Drawing for Dimensional Verification Before Ordering<\/p>\n<p><img decoding=\"async\" style=\"width: 100%; border-radius: 4px; display: block;\" src=\"https:\/\/metalite.net\/wp-content\/uploads\/2026\/09\/HCYY11112027-Crane-Rear-Outrigger-Jack-Hydraulic-Cylinder-CAD.webp\" alt=\"HCYY11112027 crane rear outrigger jack hydraulic cylinder CAD technical drawing with full dimensions\" title=\"\"><\/p>\n<p style=\"margin: 12px 0 0 0; font-size: 13px; color: #666;\">Verify the 640mm retracted installation distance, rod-end pad interface geometry, and port positions against your crane&#8217;s rear outrigger beam bracket before placing an order. Full DXF and PDF format available on request after confirming application details.<\/p>\n<\/div>\n<p><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 SECTION 7: Ordering checklist \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 --><\/p>\n<h2 style=\"font-size: 22px; font-weight: bold; color: #0d2d52; border-bottom: 2px solid #e0e8f2; padding-bottom: 10px; margin: 0 0 20px 0;\">Ordering Checklist \u2014 Confirming the HCYY11112027 Fits Your Crane&#8217;s Rear Jack Position<\/h2>\n<ul style=\"padding-left: 20px; color: #333; font-size: 15px; margin: 0 0 32px 0;\">\n<li style=\"margin-bottom: 10px;\"><strong>Confirm rear jack position (not front):<\/strong> The rear jack (HCYY11112027) has a \u03a670mm bore, 420mm stroke, and 640mm installation distance. The front jack (HCYY11112025) has a \u03a680mm bore, 790mm stroke, and 1,112mm installation distance. Bore measurement alone will distinguish them in the field.<\/li>\n<li style=\"margin-bottom: 10px;\"><strong>Retracted installation distance (640mm):<\/strong> Measure pin-centre to pin-centre on the existing cylinder at full retraction. If this reads significantly different from 640mm, check whether the existing cylinder has been replaced with a non-original-spec unit at some point in the crane&#8217;s service history.<\/li>\n<li style=\"margin-bottom: 10px;\"><strong>Rod end interface:<\/strong> Flat pad socket, spherical knuckle, or fixed eye. Confirm articulation angle requirement and pad socket or pin diameter. The rear outrigger position may use a different pad interface style from the front depending on the crane manufacturer&#8217;s design.<\/li>\n<li style=\"margin-bottom: 10px;\"><strong>Head end mount:<\/strong> Trunnion, clevis, or flange. Pin bore diameter and spherical bearing requirement. Confirm these against the crane&#8217;s rear outrigger beam bracket dimensions.<\/li>\n<li style=\"margin-bottom: 10px;\"><strong>Port specification:<\/strong> Thread type and port location. On a rear-mounted cylinder, confirm port orientation to ensure hose connections face toward the beam&#8217;s internal hose routing path \u2014 not toward the ground or the beam wall.<\/li>\n<li style=\"margin-bottom: 10px;\"><strong>Seal material:<\/strong> Standard polyurethane for mineral hydraulic oil. Viton (FKM) available for fire-resistant fluid circuits \u2014 specify fluid type at order placement.<\/li>\n<\/ul>\n<p><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 FAQ \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 --><\/p>\n<h2 style=\"font-size: 22px; font-weight: bold; color: #0d2d52; border-bottom: 2px solid #e0e8f2; padding-bottom: 10px; margin: 48px 0 20px 0;\">Frequently Asked Questions \u2014 HCYY11112027 Crane Rear Outrigger Jack Hydraulic Cylinder<\/h2>\n<div style=\"margin-bottom: 16px; border: 1px solid #dce6f0; border-radius: 6px; overflow: hidden;\">\n<div style=\"background: #f0f4fa; padding: 14px 18px;\">\n<p style=\"margin: 0; font-weight: 600; color: #0d2d52; font-size: 15px;\">Q: Why does the rear jack (20MPa) operate at higher pressure than the front jack (18MPa) when the rear load is typically lower?<\/p>\n<\/div>\n<div style=\"background: #fff; padding: 14px 18px;\">\n<p style=\"margin: 0; font-size: 14px; color: #444;\">The higher circuit pressure compensates for the smaller bore. The rear jack uses a \u03a670mm bore versus the front&#8217;s \u03a680mm \u2014 if both operated at 18MPa, the rear would generate only approximately 63 kN compared to the front&#8217;s 90 kN. The 20MPa rear circuit pressure brings the rear jack&#8217;s output up to approximately 77 kN, maintaining adequate force output from a more compact cylinder. The pressure setting is a system design decision that optimises force output against cylinder packaging size \u2014 not a reflection of the rear jack carrying a higher load than the front.<\/p>\n<\/div>\n<\/div>\n<div style=\"margin-bottom: 16px; border: 1px solid #dce6f0; border-radius: 6px; overflow: hidden;\">\n<div style=\"background: #f0f4fa; padding: 14px 18px;\">\n<p style=\"margin: 0; font-weight: 600; color: #0d2d52; font-size: 15px;\">Q: What push force and retraction force does this cylinder generate?<\/p>\n<\/div>\n<div style=\"background: #fff; padding: 14px 18px;\">\n<p style=\"margin: 0; font-size: 14px; color: #444;\">At 20MPa with a \u03a670mm bore (area \u2248 3,848 mm\u00b2), theoretical push force is approximately 76.9 kN \u2014 around 7.8 tonnes-force. After seal friction (3\u20135%), usable push force is approximately 73\u201374.6 kN. Retraction force uses the annular area (\u03a670mm bore minus \u03a655mm rod): annular area \u2248 1,462 mm\u00b2, giving approximately 29.2 kN retraction force at 20MPa. The retraction force is sufficient to retrieve the cylinder against any residual ground adhesion of the outrigger pad, which can occur in soft clay or muddy conditions.<\/p>\n<\/div>\n<\/div>\n<div style=\"margin-bottom: 16px; border: 1px solid #dce6f0; border-radius: 6px; overflow: hidden;\">\n<div style=\"background: #f0f4fa; padding: 14px 18px;\">\n<p style=\"margin: 0; font-weight: 600; color: #0d2d52; font-size: 15px;\">Q: Our rear jack cylinder shows oil weeping around the rod at the gland \u2014 is resealing sufficient or should we replace the cylinder?<\/p>\n<\/div>\n<div style=\"background: #fff; padding: 14px 18px;\">\n<p style=\"margin: 0; font-size: 14px; color: #444;\">Rod seal weeping at the gland can be addressed by resealing if \u2014 and only if \u2014 the chrome rod surface is undamaged. Run a fingernail lightly along the rod surface in the wiper contact zone: if you can feel longitudinal scoring grooves, the rod surface has been damaged by abrasive contamination and the new rod seal will fail within a short period of service on a damaged rod. In that case, rod replacement or full cylinder replacement is the correct repair. If the rod surface is smooth and the gland components are in good condition, a reseal using the correct seal kit for this bore and rod size will restore the cylinder to service. At 24kg total weight, full cylinder replacement is often more cost-effective than a workshop reseal when the rod surface condition is questionable.<\/p>\n<\/div>\n<\/div>\n<div style=\"margin-bottom: 16px; border: 1px solid #dce6f0; border-radius: 6px; overflow: hidden;\">\n<div style=\"background: #f0f4fa; padding: 14px 18px;\">\n<p style=\"margin: 0; font-weight: 600; color: #0d2d52; font-size: 15px;\">Q: Can the rear jack cylinders be supplied with extended stroke for cranes that require more ground clearance?<\/p>\n<\/div>\n<div style=\"background: #fff; padding: 14px 18px;\">\n<p style=\"margin: 0; font-size: 14px; color: #444;\">Yes, custom stroke lengths are available. If your application requires more than 420mm of vertical travel at the rear jack position, provide your required stroke and installation distance and we will advise on feasibility, rod buckling analysis at the extended stroke, and any required changes to wall thickness or gland design. Note that increasing the stroke also increases the retracted installation distance \u2014 confirm that your chassis bracket geometry can accommodate a longer cylinder before specifying a custom stroke.<\/p>\n<\/div>\n<\/div>\n<div style=\"margin-bottom: 16px; border: 1px solid #dce6f0; border-radius: 6px; overflow: hidden;\">\n<div style=\"background: #f0f4fa; padding: 14px 18px;\">\n<p style=\"margin: 0; font-weight: 600; color: #0d2d52; font-size: 15px;\">Q: Is this cylinder suitable for cranes with rear-heavy counterweight configurations where the rear jacks carry more load than the front?<\/p>\n<\/div>\n<div style=\"background: #fff; padding: 14px 18px;\">\n<p style=\"margin: 0; font-size: 14px; color: #444;\">It depends on the load magnitude. The HCYY11112027 generates 77 kN per rear jack position at 20MPa \u2014 a total rear support capacity of 154 kN (approximately 15.7 tonnes) with both rear jacks deployed. If your crane&#8217;s rear-heavy configuration places more than this load on the two rear jack positions, this cylinder specification is not adequate and a larger bore or higher pressure unit is required. Provide your crane&#8217;s rear jack load calculation (or the crane&#8217;s rated lift capacity and counterweight specification) and we will confirm whether the HCYY11112027 is appropriate or recommend an alternative specification.<\/p>\n<\/div>\n<\/div>\n<p><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 FULL SERIES SUMMARY TABLE \u2014 unique to this final page as a selection guide \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 --><\/p>\n<div style=\"margin: 56px 0 48px 0;\">\n<h2 style=\"font-size: 22px; font-weight: bold; color: #0d2d52; border-bottom: 2px solid #e0e8f2; padding-bottom: 10px; margin: 0 0 20px 0;\">Complete Crane Hydraulic Cylinder Series \u2014 All Seven Models at a Glance<\/h2>\n<p style=\"font-size: 15px; color: #333; margin: 0 0 20px 0;\">All seven cylinders in this crane hydraulic series are purpose-designed for specific positions within the same crane system. The table below summarises their specifications side by side to assist procurement teams, OEM engineers, and MRO coordinators in quickly identifying the correct model for each crane position without cross-referencing individual product pages.<\/p>\n<div style=\"overflow-x: auto;\">\n<table style=\"width: 100%; border-collapse: collapse; font-size: 13px; min-width: 820px;\">\n<thead>\n<tr style=\"background: #0d2d52; color: #fff;\">\n<th style=\"padding: 12px 10px; text-align: left; font-weight: 600; white-space: nowrap;\">Model<\/th>\n<th style=\"padding: 12px 10px; text-align: left; font-weight: 600; white-space: nowrap;\">Position<\/th>\n<th style=\"padding: 12px 10px; text-align: center; font-weight: 600; white-space: nowrap;\">Bore \u00d7 Rod<\/th>\n<th style=\"padding: 12px 10px; text-align: center; font-weight: 600; white-space: nowrap;\">Stroke (mm)<\/th>\n<th style=\"padding: 12px 10px; text-align: center; font-weight: 600; white-space: nowrap;\">Work. Press.<\/th>\n<th style=\"padding: 12px 10px; text-align: center; font-weight: 600; white-space: nowrap;\">Max Press.<\/th>\n<th style=\"padding: 12px 10px; text-align: center; font-weight: 600; white-space: nowrap;\">Install. Dist.<\/th>\n<th style=\"padding: 12px 10px; text-align: center; font-weight: 600; white-space: nowrap;\">Weight<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr style=\"background: #eaf1fb;\">\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; font-weight: bold; color: #0d2d52; white-space: nowrap;\">HCYY11112021<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; color: #333;\">Main Boom Lift<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; text-align: center; white-space: nowrap;\">\u03a6280 \u00d7 \u03a6250<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; text-align: center;\">3,507<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; text-align: center;\">31.5 MPa<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; text-align: center;\">39 MPa<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; text-align: center;\">4,218 mm<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; text-align: center;\">1,155 kg<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; font-weight: bold; color: #0d2d52; white-space: nowrap;\">HCYY11112022<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; color: #333;\">Outrigger Extension<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; text-align: center; white-space: nowrap;\">\u03a670 \u00d7 \u03a650<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; text-align: center;\">1,237<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; text-align: center;\">20 MPa<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; text-align: center;\">30 MPa<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; text-align: center;\">140 mm<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; text-align: center;\">48 kg<\/td>\n<\/tr>\n<tr style=\"background: #eaf1fb;\">\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; font-weight: bold; color: #0d2d52; white-space: nowrap;\">HCYY11112023<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; color: #333;\">Outrigger Jack<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; text-align: center; white-space: nowrap;\">\u03a6140 \u00d7 \u03a6120<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; text-align: center;\">640<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; text-align: center;\">30 MPa<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; text-align: center;\">40 MPa<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; text-align: center;\">983 mm<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; text-align: center;\">123 kg<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; font-weight: bold; color: #0d2d52; white-space: nowrap;\">HCYY11112024<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; color: #333;\">Front Outrigger Extension<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; text-align: center; white-space: nowrap;\">\u03a640 \u00d7 \u03a630<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; text-align: center;\">1,855<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; text-align: center;\">12 MPa<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; text-align: center;\">18 MPa<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; text-align: center;\">2,057 mm<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; text-align: center;\">24 kg<\/td>\n<\/tr>\n<tr style=\"background: #eaf1fb;\">\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; font-weight: bold; color: #0d2d52; white-space: nowrap;\">HCYY11112025<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; color: #333;\">Front Outrigger Jack<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; text-align: center; white-space: nowrap;\">\u03a680 \u00d7 \u03a660<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; text-align: center;\">790<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; text-align: center;\">18 MPa<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; text-align: center;\">27 MPa<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; text-align: center;\">1,112 mm<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; text-align: center;\">45 kg<\/td>\n<\/tr>\n<tr style=\"background: #fff;\">\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; font-weight: bold; color: #0d2d52; white-space: nowrap;\">HCYY11112026<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; color: #333;\">Rear Outrigger Extension<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; text-align: center; white-space: nowrap;\">\u03a640 \u00d7 \u03a625<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; text-align: center;\">635<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; text-align: center;\">12 MPa<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; text-align: center;\">18 MPa<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; text-align: center;\">840 mm<\/td>\n<td style=\"padding: 11px 10px; border-bottom: 1px solid #dce6f0; text-align: center;\">9 kg<\/td>\n<\/tr>\n<tr style=\"background: #eaf1fb;\">\n<td style=\"padding: 11px 10px; font-weight: bold; color: #0d2d52; white-space: nowrap;\">HCYY11112027<\/td>\n<td style=\"padding: 11px 10px; color: #333;\">Rear Outrigger Jack<\/td>\n<td style=\"padding: 11px 10px; text-align: center; white-space: nowrap;\">\u03a670 \u00d7 \u03a655<\/td>\n<td style=\"padding: 11px 10px; text-align: center;\">420<\/td>\n<td style=\"padding: 11px 10px; text-align: center;\">20 MPa<\/td>\n<td style=\"padding: 11px 10px; text-align: center;\">30 MPa<\/td>\n<td style=\"padding: 11px 10px; text-align: center;\">640 mm<\/td>\n<td style=\"padding: 11px 10px; text-align: center;\">24 kg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p style=\"font-size: 13px; color: #666; margin: 12px 0 0 0; font-style: italic;\">All seven cylinders are available individually or as a complete set. For OEM crane builds requiring the full set, contact us for a consolidated quotation with matched production batch traceability across all seven units.<\/p>\n<\/div>\n<p><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 CTA \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 --><\/p>\n<div id=\"contact-cta\" style=\"background: linear-gradient(135deg, #0d2d52 0%, #1a5fa8 100%); color: #fff; border-radius: 8px; padding: 36px 32px; margin: 0 0 32px 0; text-align: center;\">\n<p style=\"font-size: 13px; letter-spacing: 0.1em; text-transform: uppercase; margin: 0 0 10px 0; opacity: 0.8;\">B2B Procurement &amp; OEM Supply<\/p>\n<h2 style=\"font-size: 26px; font-weight: bold; color: #fff; margin: 0 0 16px 0; border: none; padding: 0;\">Source the HCYY11112027 \u2014 or the Complete Seven-Cylinder Crane Set<\/h2>\n<p style=\"font-size: 15px; opacity: 0.9; max-width: 640px; margin: 0 auto 28px auto; line-height: 1.7;\">Whether you need a single rear jack cylinder replacement or a complete set of all seven crane hydraulic cylinders for OEM production or fleet overhaul, provide your crane model, required specifications, and quantities. We confirm compatibility, supply CAD drawings for engineering review, and issue a formal quotation within 24\u201348 business hours.<\/p>\n<div style=\"display: flex; flex-wrap: wrap; gap: 14px; justify-content: center;\"><a style=\"display: inline-block; background: #fff; color: #0d2d52; padding: 13px 28px; border-radius: 4px; text-decoration: none; font-weight: bold; font-size: 15px;\" href=\"\/kk\/contact\/\">Request a Quote<\/a><br \/>\n<a style=\"display: inline-block; background: transparent; color: #fff; padding: 13px 28px; border-radius: 4px; text-decoration: none; font-weight: 600; font-size: 15px; border: 2px solid rgba(255,255,255,0.6);\" href=\"meilto:sales@metalite.net\">Request CAD Drawing<\/a><br \/>\n<a style=\"display: inline-block; background: transparent; color: #fff; padding: 13px 28px; border-radius: 4px; text-decoration: none; font-weight: 600; font-size: 15px; border: 2px solid rgba(255,255,255,0.6);\" href=\"#contacts\">Full Set Enquiry<\/a><\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>HCYY11112027 rear outrigger jack cylinder: \u03a670mm bore, 20MPa, 420mm stroke, 640mm installation distance, 24kg. Static load holding. OEM supply &amp; CAD drawings.<\/p>","protected":false},"featured_media":1747,"template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[],"product_cat":[106,103,21],"product_tag":[],"class_list":["post-1781","product","type-product","status-publish","has-post-thumbnail","product_cat-crane-hydraulic-cylinder","product_cat-engineering-vehicles-hydraulic-cylinders","product_cat-hydraulic-cylinders","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/metalite.net\/kk\/wp-json\/wp\/v2\/product\/1781","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/metalite.net\/kk\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/metalite.net\/kk\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/metalite.net\/kk\/wp-json\/wp\/v2\/media\/1747"}],"wp:attachment":[{"href":"https:\/\/metalite.net\/kk\/wp-json\/wp\/v2\/media?parent=1781"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/metalite.net\/kk\/wp-json\/wp\/v2\/product_brand?post=1781"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/metalite.net\/kk\/wp-json\/wp\/v2\/product_cat?post=1781"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/metalite.net\/kk\/wp-json\/wp\/v2\/product_tag?post=1781"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}